# Math

## Recent Questions

**math**

Reflecting functions over the x-axis if(x)=-2/3x+2 ; f(x)=2/5x-3

**math**

24 men works for 14 days, 2 days after they started working, 4 more men joined them and after 2 more days, 6 men left. How many more days will they now take to complete the remaining work?

**math**

A single machine can produce 1 unit in 6 min.how many such machines work together if 1450 units are produced from 10am to 12pm? option (58,32,27,14)

**Math**

Which inequality represents the solution shown on the graph? A number line is shown with a solid blue dot drawn on negative 60 and a blue ray pointing to the right of negative 60. Scott?

**Math**

Choose the graph that shows the solution of the inequality on the number line. c < -1

**Math**

Speed of an airplane and time it takes the plane to complete a 500-mile trip

**math**

The difference between two numbers is 3. Eight times the larger number is 10 times the smaller number. Write a system of equations describing the given conditions. Then solve the system by the substitution method and find the two numbers.

**Math**

Debbie flipped a coin 20 times. The result were 7 heads and 13 tails. What is the relative frequency of heads for her experiment?

**math**

a woman deposits $9000 at the end of each year for 7 years in an account paying 4%interest compounded annually

**Math Algebra**

Ann is 8 years older than Dawn. Dan is 5 years younger than Dawn. The sum of their ages is 108. How old is Dan? Please explain work too.

**Math**

An alloy is composed of nickel, zinc, and copper in a ratio of 3:4:13. How many kilograms of each metal are needed to make 4 kg of this alloy?

**Math**

Calculate The Totale Surface Area And The Volume Of The Given Right Triangular Prism?

**Math**

The sides of a rectangle are in the ratio of 4:5. If the width is 28 in., find the length, the perimeter, and the area of this rectangle.

**Math**

Find the number if 6% of it is 20% of 6

**Math**

A flower bed is 4 meters wide and 5 meters long. What is the area of the flower bed in square feet? Round intermediate calculations and your answer to the nearest hundredth.

**Math**

Three friends each have some ribbons. Carl has 90 inches of ribbons, Tino has 10.5 feet of ribbon, and Baxter has 2.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards. What I need: Instructions on how to do this because I ...

**Math**

An employee earns $200 for 14 hours work. Assuming he is paid by the hour, how much will this employee earn in 35 hours?

**math**

The third term of a Gp is 54 & 7th term is reciprocal of 3rd term find the 5th term

**Math**

A salesman sold a book at 5%of the marked price instead of discounting the marked price by 5%.If he sold the book for Rs.4.20,what was the price for which he should have sold the book?

**Math**

Arid buys 2750 eggs For $100 and loses 350 of those .If he sells the remaining eggs at 70percents/dozen,what percent of his original investment is his profit?

**Math**

Thevolume of a right circular cone is 5 litres.calculate the volumes of the two parts into which the cone is divided by a plane parallel to the base,one-third of the way down from the vertex to the base.

**Math**

In a particular arithmetic progression, the sum of the first 10 terms is equal to the sum of the first twenty terms. Show that the sum of the first 30 terms is equal to 0.

**Math**

Aslam buys 30 cows for an average of Rs.900. He buys 12 more by bringing the average cost to Rs.875. How much did the recent purchase cost him?

**Math**

The cost price of an article which on being sold at a gain of12% yields Rs.6 more than when it is sold at a loss of 12%,is

**math**

1.one more than 3 tens 2.one less than four times five 3.five added to six 4.successor of 28 5.two more than two times tens 6.the greatest 1 digit composite number 7.three added to three times three

**algebra expression (math)**

Thinks of a number.Add 5 .The result the same as the multiplying original number by 6.What is the number?

**math**

n = 1 2 3 4 x = 5 10 15 20 y = 1 3 5 7 according to the pattern above, write the rule between x and y?

**math**

shinta notice that in her piggy bank she has 60 coins all of which are $1 or $2 pieces. She finds that the value of the coins is $92. Let x be the number of $1 coins she has, make an equation on find x.

**math**

Determine graphically the x-value when y equals 3y=3 in the given equation. y equals 5 minus x y=5-x

**math**

tracy is 7 times as old as heather. if let x be the age of heather now. If in five years time , tracy will be four times as old as heather, write an equation involving x and solve it to find what tracy's age is now.

**Math**

40 patients were asked how many hours they slept at night 16 said 8 hours. 700 patients in hospital estimate how many slept 8 hours a night

**Math**

Jenny is 64 inches tall and her shadow is 30 inches long. Her daughter's shadow measures 25 inches. How tall is her daughter?

**math**

the ratio of dogs to cats is 2:5. If there are 14 animals, how many dogs and cats are there at the kennel? 2:5=14?

**Math**

The base of the right prism is a rhombus with the side 7 cm. The altitude of the prism is h=13 cm. Find the lateral area of the prism.

**math**

Comic Relief was on for 6 hours,from 6pm to 12am. How many degrees did the minute hand turn during this time?

**math**

Given that R = 3 x + 9 y Find x when y = 6 and R = 7 Give your answer as an improper fraction in its simplest form

**math**

A picture measures 40 cm by 50 cm. A 7.5 cm wide mat goes around the picture. Calculate the area of the mat.

**math**

489967234+500101234+657999812,correct upto the nearest ten thousand

**math**

23467+765446+98656 round upto the nearest hundred

**Math**

A mother is now three time as old as her daughter five years ago there sum of ages was 50 find mother age now

**Math**

If 1/2 x years ago Adam was 12,and1/2 x years from now he will be 2x years old,how old will he be 3x years from now?

**Math**

Jenny, ken and Ben have total $390.jen has 5 times as much as Ben, and ken has3/4 as much as jen .how much money does ken have?

**Math**

Two automobiles travel in the same direction at 40 miles per hour and 50 miles per hour, respectively? How many hours after they are alongside of each other will they be 18 miles apart.

**Math**

Avi drove from his home to college 60 miles per hour. Returning over the same route, there was a lot of traffic, and he was only able to drive at 40 miles per hour. If the return trip took one hour longer, how many miles did he drive each way.

**Business math**

find the annual percentage rate on a loan of $1,500 for 18months if the loan requires $190 interest and is repaid monthly.

**Math**

At what time a train travelling at 50 miles per hour arrives at the station, if it is the 5 miles from the station at 5:00 pm.

**Math (Algebra)**

I have to solve a few systems through elimination, but I'm still not quite sure how to do it.. The first is y=x^2 and y=x+2 Can someone show me how exactly it is worked out so I can try the second one myself?

**Math (Integrals) (Volume of Revolution Setup)**

I am supposed to find the area of the region given two boundaries and two functions revolving about the x axis. x = 0 x = pi/2 y = cos(x/2) y = sin(x/2) Graphing those two functions made me select to use the washer method. Therefore, I set my definite integral to this: pi∫[0...

**Math**

Four bells toll at intervals of8,9,12 and 15 minutes respectively if they toll together at 3 p.m when will they toll together next

**Math Tangent Graph**

I am not sure how I am supposed to do this question please help! goo.gl/photos/qdTXmfjpkBv6hPxn8

**Math**

A canadian television station shows 16 mins of commercials every hour between 8am and 11pm everyday. How many minutes of commercials are there on the station between 8 am and 11 pm in 365 days?

**Math**

Think about the number line and presume 1 step to the left is represented by -1 while 2 steps to the right is represented by 2. We moved 10 steps to the right and then 11 steps to the left. What is our current position relative to the starting point at zero?

**Math help !!!**

Connexus Pre-algebra If m<1=37°, what is m<4? A: 53° B: 43° C: 37° D:27° Will someone help explain to me how I would do this? Thank you!!!!

**MATH**

The pool is partially filled with water. The volume of the water in the pool is 45 cubic feet. How deep is the water? A.) 0.5 ft B.) 1.5 ft ** C.) 2.5 ft D.) 3.5 ft

**math**

Henry purchased x apples and Jack purchased 10 apples fewer than one-third of the number of apples Henry purchased. Are these amounts equal? A-the number of apples Jack purchased B-x-30 divided by 3

**Math**

22% of Shirley's monthly salary is deducted for withholding if those deductions total $209 what did her salary

**Math (integrals) (Trig Subsititution)**

Find ∫1/((x^2+5)^(3/2)) dx I figured this would be a trig substitution problem, so I set x = sqrt(5)tanθ and dx = sqrt(5)sec^2(θ) dθ This would lead to: ∫(sqrt(5)sec^2(θ)) / (5tan^2(θ) + 5)^(3/2) dθ But I'm kinda lost on what to do next. I'm used to breaking up the ...

**Math**

2x*9x^y9=

**math**

Find the probability of spinning each of the following. /content/media/680582-592012-85319-AM-284858430.png 1. P(7) (1 point) 1/7 1/8 3/8 7/8 2. P(not 7) (1 point) 1/7 1/8 5/8 7/8 3. P(a multiple of 2) (1 point) 0.25 0.5 0.625 0.75 4. P(a factor of 12) (1 point) 12.5% ...

**Math Probability**

You roll a number cube 20 times. It lands on 2 five times. What is the experimental probability of rolling a 2? 1}40% 2)10% 3)25% 4)17% I think #3 Thanks

**MATH**

Calculate the area of the composite figure, which is not drawn to scale. {the link above is a picture of the shape}

**math**

Find 16 2/3% of 9 litres.

**math**

Increase 12kg in the ratio 5:3

**Math**

A soccer team won three fourths of its games. The team won 18 games. How many games did the team play?

**Math**

Profit/Loss January $40,520 –$35,080 February $34,492 –$37,025 March $32,490 –$35,175 April $42,580 –$39,687 May $50,032 –$45,510 June $48,365 –$46,045 July $42,115 –$38,518 August $36,427 –$39,058 September $37,963–$40,185 October $38,813–$35,148 November...

**math**

A red die and a green die have been rolled. (6 sided) What is the probability of the event? 1.The number on the red die is greater than the number on the green die (Answer is 5/12 but how?) 2. The sum is less than 10. 3. The sum is even. 4. The sum is prime. 5. The sum is 7 or...

**Math**

Find the actual values for sin x by showing all your working if sec x=4/3,tan x<0.

**Math.... I need help, 3 questions for homework I j**

1.Based on a survey, 3 out of ten students like to play the flute. For a class of 700, how many flutes should the teacher pre-order: A. 70 flutes B. 210 flutes C. 300 flutes D. 490 flutes 2.The probability of getting a winning scratch of ticket is 4 out of 10. If dan buys 25 ...

**Math Check! FAST! VERY FAST PLZ!!!!!!!!!!!!!!**

A bag contains tiles with the letters A-R-I-T-H-M-E-T-I-C. Amelia chooses a tile without looking and doesn’t replace it. She chooses a second tile without looking. What is the probability that she will choose the letter I both times? •1/25 •1/45*** •2/45 •2/55

**Math**

In Mike's English class at university there are 178 students, of whom 51 also study history and 44 also study statistics. There are another 85 students who also study history, of whom 25 study statistics also. Another 35 students study only statistics. If 15 students study all...

**Math Check! FAST!**

A bag contains tiles with the letters A-R-I-T-H-M-E-T-I-C. Amelia chooses a tile without looking and doesn’t replace it. She chooses a second tile without looking. What is the probability that she will choose the letter I both times? •1/25 •1/45*** •2/45 •2/55

**math**

Luke wants to paint his bedroom blue. He has 8/9 of a gallon of paint. If he has three walls left to paint, how much paint will each wall get? rub.

**MATH**

1. A yogurt shop offers five different flavors of frozen yogurt and thirteen different toppings. How many choices are possible for a single serving of frozen yogurt with one topping? 70 56 18 65** 2. Prestige Builders has a development of new homes. There are five different ...

**math**

Which of the following is a certain event? 1) rolling a composite number on a number cube 2)rolling a number greater than 1 on a number cube 3)rolling an odd or even number on a number cube 4)rolling an odd or even number greater than 7 I think # 3 Thanks for your hrlp

**Math**

Max earned a 85% on his test. If there were 40 questions on the test, how many did he get correct?

**Math**

Yo must be under 12 years of age to order from the kid's menu at a retraurant a < 12 a < 12 ( theres a underscore at < ) a > 12 a > 12 ( another underscore here )

**math**

Ann began her homework at 3:55 P.M. She spent 15 minutes on her first assignment, and 40 minutes on her second assignment. At what time was she finished with both assignments?

**MATH**

If a spinner is spun twice what is the probability that the arrow will stop ona vowel both times? Letters are: T, A, D, U, P,I A. 2/9 B. 1/4 C. 1/3*** D. 11/36

**Math**

Which pair of ratios does NOT form a proportion? A. 3/5, 24/40 B. 30/10,15/5 C. 9/14, 3/4 D. 7/12, 14/24 Help please!!!!!!!!!!!!!! Dont give me the answer, just tell me how to answer it.

**CHECK MATH FAST!!!!!!**

You want to draft a four-player tennis team. There are eight players to choose from. How many different teams can you form? (1 point) •70**** •64 •48 •336 Elizabeth has two identical number cubes. Both cubes have faces numbered 1 through 6. If Elizabeth rolls each cube...

**Math**

A total of 130 children attended a basketball camp. Of these, fewer than 87 were girls. Which inequality can be used to find n, the number of boys that might have attended camp?

**math**

im using the median to find out the IQR i found that 157.5 is the IQR of the data set below. I keep checking with different calculators but the answers are different 34, 96, 112, 121, 148, 175, 211, 231, 236, 276, 285, 299, 324, 434, 457. May someone confirm my answer

**Math Check! #3**

You want to draft a four-player tennis team. There are eight players to choose from. How many different teams can you form? (1 point) •70 •64 •48 •336****

**Math Check!**

Elizabeth has two identical number cubes. Both cubes have faces numbered 1 through 6. If Elizabeth rolls each cube once, what is the probability that the sum of the two numbers on the top faces will be 10? •1/36 •1/12 •1/10 •1/9

**Math**

If a scale of 2cm represent 3/4km find the length on the scale drawing in 30km

**Math Check!**

Suppose 10% of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie used the random-number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents flights arriving early. The...

**Math**

Complete the following task in your discussion group: Create two different situations: one in which you use combinations and one in which you use permutations. Include specific details and an explanation about what makes each situation either a combination or permutation. Can ...

**MATH**

Calculate the area of the composite figure which is not drawn to scale. 17 cm 10 cm 22 cm 17 cm 19 cm the shape is a rectangle with a right triangle on its side

**Math**

Does the following infinite geometric series diverge or converge? Explain. 1/7+1/28+1/112+1/448 A) It converges; it has a sum.*** B) It diverges; it does not have a sum. C) It diverges; it has a sum. D) It converges; it does not have a sum. Since (1/7)/(6/7)=1/6 and -1>1/6&...

**Math**

A rectangular sand box has a length of 5 1/3 feet and a width if 3 3/4 feet. What is its perimeter?

**Math**

a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41••

**CHEK MATH PLZ!!!**

The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) (6,1)|(6,2)|(6,3)|(6,5)|(6...

**Math**

A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. Find P(not even). A. 1/3 B. 1/2 •• C. 1/5 D. 1/4

**Math**

a number cube is rolled 150 times. the number 3 comes up 43 times. hat is the experimental probability of rolling a 3? what is the theoretical probability of rolling a 3? A. 43/150 ; 1/6 B. 43/150 ; 1/50 •• C. 1/6 ; 43/150 D. 3/43 ; 1/6

**Math**

you draw five card from a standard deck of 52 cards p(heart)=4/5. what type of probability is illustrated and why?? 1) Theroretical ; the result is based on then number of possible outcomes 2) Theroretical; the result is found by repeating an experiment 3)Expiremental; the ...

**Math**

I need help on one of my math questions. 7. A coin is flipped, and a number cube is rolled. What is P(T, then odd)? (1 point) 1/4 1/12 1/6 Help plz.

**Math Again helpppp**

1. A new movie open the other day. So far 500,000 people have seen. The producers of the movie need to know if the people liked it. A random sample of 8000 people were asked as they were leaving the theater if they like the movie. Of those interviewed 4200 enjoyed the movie. ...

**Math Help ASAP!!!**

1. a standard number cube is rolled 180 times. Predict how many times a 3 or 5 will be the result. 31 times 60 times*** 57 times 30 times 2. A number cube is rolled 360 times, and the results are recorded as follows: 61 ones, 26 twos, 36 threes, 76 fours, 73 fives, and 88 ...

**Math**

Am I doing this correctly Use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 75 and the 8th term is 48. A) 60*** B) 66 C) 57 D) 51.5 E) 59 F) 68 r^2 = 48/75 = 16/25 r = 4/5 7th term = 75 * 4/5 = 60

**math**

Mrs. Blake's bill at a restaurant was $42.75. She wants to leave the waiter an 18% tip. How much will she pay in all, including the tip?